Easter engineering works

I have just found out that there are engineering works on the Hounslow loop over the entire Easter period with no train services running through Isleworth and Brentford. SWT used to give advance publicity for disruptions such as this on the station noticeboards. Why can't SWR do the same ? I don't suppose NR could also use this as an opportunity to remove lineside graffiti on and around the platforms ?

Hi, I have just checked our system and an announcement referring to engineering works over the Easter weekend is playing at every station every 15 mins. The sound clip attached is playing at Isleworth and Brentford.